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Very rare and hard to get hold of.. sold out everywhere.
Its a replica of the locket (with moodstone) that the sereias wear in the TV show H2o Just add Water and is an official licensed product.
The colar is great quality. It is a highly polished stainless steel colar that looks like silver. The locket opens and has three pictures of the sereias to put inside (or you can use your own photo).